components/translate/content/renderer/renderer_cld_utils.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_TRANSLATE_CONTENT_RENDERER_RENDERER_CLD_UTILS_H_
   6 #define COMPONENTS_TRANSLATE_CONTENT_RENDERER_RENDERER_CLD_UTILS_H_
   7
   8 #include "base/macros.h"
   9
  10 namespace translate {
  11
  12 // Renderer-side utilities for dealing with CLD data source configuration.
  13 // This class exists primarily to avoid duplicating code in high-level targets
  14 // such as the Chrome browser, Chrome shell, and so on.
  15 class RendererCldUtils {
  16  public:
  17   // Perform conditional configuration of the CLD data provider.
  18   // If no specific RendererCldDataProvider has yet been set, an instance is
  19   // created and assigned as appropriate for each platform. If a specific
  20   // RendererCldDataProviderFactory *has* been set, this method does nothing
  21   // (as a side effect of setting the default factory, subsequent invocations
  22   // do nothing - making this method reentrant).
  23   //
  24   // This method will not overwrite a data provider configured by an embedder.
  25   //
  26   // Maintainers: This is the default data source. It is appropriate to
  27   // ifdef this code and customize the default per-platform. This method must
  28   // be invoked prior to registering components with the component updater if
  29   // the component updater implementation is to be used; it is best to ensure
  30   // that this method is called as early as possible.
  31   static void ConfigureDefaultDataProvider();
  32
  33  private:
  34   RendererCldUtils() {}
  35   ~RendererCldUtils() {}
  36   DISALLOW_COPY_AND_ASSIGN(RendererCldUtils);
  37 };
  38
  39 }  // namespace translate
  40
  41 #endif  // COMPONENTS_TRANSLATE_CONTENT_RENDERER_RENDERER_CLD_UTILS_H_